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TT-ARVR™ Display Test Module

Displays viewed near to the eye create immersive virtual experiences, such as those integrated into AR/VR devices. However, as display images are magnified to fill a user’s field of view (FOV), display defects are also magnified. Issues with uniformity of brightness and color, dead pixels, line defects, cloudiness, and image position become more evident to the user whose eyes are merely centimeters away from display screens.

Part of the Radiant Vision Systems TrueTest™ Software family, the TT-ARVR™ module provides all of the benefits of TrueTest Software to efficiently perform light, color, and dimensional measurements with specific tests to evaluate the quality of displays integrated into AR, VR, and MR (mixed reality) devices and headsets. A comprehensive AR/VR display test solution from Radiant combines the TT-ARVR application-specific software module, a ProMetric® Imaging Colorimeter or Photometer, and the Radiant AR/VR lens to perform rapid, automated visual inspection of AR/VR displays.

TT-ARVR uses a ProMetric imager to test all display characteristics simultaneously, capturing and processing data much faster and more consistently than a human inspector or a spot measurement device.

System Requirements:

Comprehensive Display Test Suite

Tests for near-eye display (NED) quality include photometric measurements used to evaluate an imaged display’s light and color properties for defects and accuracy against defined tolerances. TT-ARVR allows users to define a complete set of measurement parameters and pass/fail criteria for specific points of interest on a display. The software module includes standard display tests, as well as specific tests for AR/VR quality including:

ANSI Brightness

ANSI Color Uniformity

Checkerboard Contrast

Chromaticity

Compare POI

Distortion 9 Point

Distortion Dot Grid

Distortion Line Grid Analysis

Field View (Reports actual FOV of the display in horizontal, vertical, and diagonal)

Focus Uniformity

Image Export

MTF Line Pair

MTF Slant Edge (based on ISO 12233)

Particle Defects

Pattern Mura

Pixel Defects

Points of Interest

Sequential Contrast

Uniformity

Warping Analysis

The Field View test calculates the angular device FOV of the entire display as imaged by the system; includes horizontal, vertical, and diagonal FOV measurements.

Based on the TrueTest platform, any tests from the TT-ARVR test library can be added to a sequence (which are stored, so multiple sequences can be created and recalled as needed), and test parameters and pass/fail settings are input for each test. The entire sequence can be run end-to-end automatically. Individual test results are displayed and can be recorded in a report.